Looking For GM Engine Modification Shop In NJ

[Robocop1993]

Looking for a mechanic / engine builder shop in NJ that is capable of doing a mechanical delete of the AFM system on a 2019 Suburban. I am not looking to simply turn off or disable the AFM; I am looking to have the cam and solid lifter kit installed. There has got to be a performance shop in NJ or NY that is familiar with these reliability increasing modifications. Any help is greatly appreciated.

[Teodoro Basura]

You're out of luck—I've been looking for the same thing for long time and I give up.

I haven't  found a mechanic who has the knowledgeofdoing that. I know plenty of mechanics who have replaced tons of lifters on Suburbans used in TLC  black car transportation on NYC, but none of them know how to  disable or modify the AFM (Active Fuel Management) system. Even if you buy a delete kit and bring it to them, they have no idea how to install it. Plus, the software also needs to be updated, which most of them can’t do.

I ended up spending thousands of dollars on this piece of junk GM vehicle. Honestly, you either put up with these issues or switch to another brand.

Eventually, I taught myself how to replace the lifters. But here’s the truth: it’s not always the lifters causing the noise. A lot of times, it’s just a bent pushrod. Mechanics will often charge you for a full lifter job unless you’re standing over their shoulder the entire time.

Replacing a pushrod is much easier and doesn’t require tearing down the whole engine. If you have some basic tools, it’s manageable. There’s one bolt at the back of the engine that can be tricky, but otherwise, it’s a 3-hour job. Lifter replacements take around two days. What many mechanics do is tell you it’s a lifter issue, keep your car for three days, then just replace a $25 pushrod and charge you $2,000 for a lifter job.

 

If you are working in Black Car Trasportation,  than you are in deep trouble like hundreds os drivers like me..

But if you DONT need this specific vehicle,  than change this pice of crap GM for another brand.  GM has the most stupid engineering,  and they will not change,  is the typical American Trush.  I'm very sure by this time you already know that, that is the reason you are looking into AFM modification.

[Teodoro Basura]

I hope you read this before my post gets deleted at GM’s request—they always do.

Anytime someone speaks negatively about these GM trucks, the post disappears within a few hours, even if everything said is true.

I’m just trying to help. Check for a bent pushrod—it might not be a lifter making that noise. Don’t throw your money away on dishonest mechanics. A lot of them are just waiting to take advantage of someone who doesn’t know better. They all know the trick of blaming the lifters just to overcharge you.

[truckguy82]

On 1/29/2025 at 2:21 PM, Robocop1993 said:

Looking for a mechanic / engine builder shop in NJ that is capable of doing a mechanical delete of the AFM system on a 2019 Suburban. I am not looking to simply turn off or disable the AFM; I am looking to have the cam and solid lifter kit installed. There has got to be a performance shop in NJ or NY that is familiar with these reliability increasing modifications. Any help is greatly appreciated.

The l86 is part number for part number identical to the lt1 in the camaro and corvette. I’d be looking for a vette/camaro shop. The l83 is very similar.
 

One of the most well known corvette performance shops on the east coast is located in NJ

https://ecsgarage.com/?srsltid=AfmBOoqEMWBXEfbnYEll_kSVrUjNRYrAQSlRZVl0Smkl1khNV523OdVe

 

It will not be cheap unless you DIY. It’s a lot of hours to change a cam.

 

If your only option is paying a shop, I would suggest leaving it alone and replacing the motor if it fails.

Edited November 15, 2025 by truckguy82